Installed, No error messages, but no messages arrive on broker about octoprint-mqtt HOT 3 CLOSED

That's just a shot in the dark for now (I'm currently on a business trip and can't test it myself) but try updating your OctoPrint version. I did some heavy development over the past weeks (+120 commits on top of your version) and among those was introducing a plugin lifecycle management, which came after your OctoPrint version, but which this plugin was already modified for and depends on.

Sorry, you are really running the bleeding edge here :)

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I recognised I was bleeding edge, but the lure of MQTT was too strong :-)

I updated OctoPrint and I still wasn't receiving any MQTT messages.
So following your comment on plugin lifecycle management I installed the plugin manager (the next step was to start again so I didn't have much to lose!)
After installing the plugin manager I have now started receiving MQTT messages.

Many thanks for all your efforts

Mark

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Hm... a bit surprising though that it needed the plugin manager (it only makes installing and enabling/disabling plugins easier and shouldn't influence the basic operation of the plugin system). Odd. Ah well... I'm going to make the plugin manager part of OctoPrint anyhow soon, so let's hope it was just a hiccup :)

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